The ring dog is a heavy (1.5-4.5 kg) (1) pointed hook with one or two loose ring (s) (diameter approx. 11-15 cm; entire length 30-50 cm) to tilt trunks, to loosen a tree that has fallen on top of the other and sometimes to pull small stumps out of the ground (2).
A wooden stake (1.50-2 m) is inserted into the ring with one end on the trunk. When it is pushed upwards, the point of the hook first protrudes into the wood, then the trunk tilts. When the latter could roll back, two men work together: the first holds back the piece while the other grabs it again.
There are also adjustable models.
The ring dog is mainly used in the forest. The cant hook is used at the workplace.
See also the sappie. [MOT]
(1) HILF: 407.
(2) GAYER & FABRICIUS: 168; BOUCKAERT & POSKIN: 29.